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Finding the Fourth Proportional to 713,882.36, 984,992.46 and 427,293.56

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Solution

The fourth proportional to 713,882.36, 984,992.46 and 427,293.56 is: 589,566.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,882.36 : 984,992.46 = 427,293.56 : x
  2. Step 2: Convert to fraction form
    713,882.36/984,992.46 = 427,293.56/x
  3. Step 3: Cross multiply
    713,882.36x = 984,992.46 × 427,293.56
  4. Step 4: Simplify right side
    713,882.36x = 420,880,934,806.56
  5. Step 5: Solve for x
    x = 420,880,934,806.56/713,882.36
  6. Step 6: Final answer
    x = 589,566.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.